BGP route filtering default route

[tato386]

I have the following router setup, myBGPrtr1<->providerBGPrtr0<->myBGPrtr2.  I am receiving a default route from the provider router and myBGPrtr2 is also advertising a default route.  Is there any way that I can somehow get myBGPrtr1 to prefer the default route from myBGPrtr2 over the one advertise by providerBGPrtr0 without making any changes on the providerBGPrtr0?

Thanks,

Diego

[Peter Paluch]

Hi Diego,

Does your diagram depict true BGP peerings? If yes then I see no possibility of doing what you need without some sort of tunelling.

Best regards,

Peter

[tato386]

Actually it is worse.  Since both of my routers connect to the ISP BGP/MPLS network the true peerings are probably more like this:

myBGPrtr1<->providerBGPrtrA<-><->MPLS Network<->providerBGPrtrB<->myBGPrtr2

I was hoping I could do something withouth having to involve the provider.

Thanks for the input

Diego

[Peter Paluch]

Diego,

Perhaps something could be arranged but do you believe you could sketch a more illustrative topology of your network including the depiction of the BGP peerings, and perhaps a short dump of your routing table on the myBGPrtr1?

Best regards,

Peter

[tato386]

Peter,

Our reason for trying to do this was to filter Internet traffic by running it thru a central location. However it seems like it will be easier for us to use WCCP from each site to a central filtering server.  So at the moment we are dropping the original plan of modifying the advertised default routes on the BGP network.

I appreciate your help and thank you very much.

Rgds,

Diego

[Peter Paluch]

Hello Diego,

I understand. I've experimented with WCCP a few times but I haven't yet gained sufficient experience with it - but I am certain that the other friends here on CSC are well-versed in the WCCP.

You are most welcome.

Best regards,

Peter